Eximtrade Mercedes Media Inerface MMI to USB Stick Music Cable for Mercedes Benz Listen the music files in the USB stick via the Mercedes Media Interface (MMI). The USB port can be used as a charger for your smartphone or to read USB Flash stick for music. You have to activate the AUX mode in the MMI system in order to use this product. Please note that you can only change songs from the smartphone, no control over music from the MMI system. The playlist will not be displayed on the screen. Compatible with the Mercedes Media Interface (MMI) of Mercedes Benz. This product reads the music files in the USB stick only. The music files in the smartphone cannot be read. Please choose our MMI cables with 3.5mm connector or bluetooth if you want to play the music in your smartphone via the car stereo.